Like most manufacturers, we've looked at developing one of these machines, but at this point we have decided to focus our efforts on the mowers that our customers are asking us for, and those are the new float-deck, hydro walk-behinds and the mid-mount Zs. We introduced our new float-deck last year along w/ some enhancements to the mid-mount, and those have been well received. Meanwhile, we're just not hearing too much demand for the Z-wing-type units. Do you see much use for such a machine?

Yes in my area there are several subdivision that have 36" gates going to their back yards and the back yards are fairly large. Takes way too much time with a 36" walk behind.
I was thinking that the z-wing might be a perfect fit for that.